Jacqueline Susann (August 20, 1918, Philadelphia, Pennsylvania – September 21, 1974, New York City) was an American author known for her best-selling novels. Her most notable work was Valley of the Dolls, a book that broke sales records and spawned a 1967 movie and a short-lived TV series.

Jacqueline Susann was born in Philadelphia to Robert Susann, a portrait painter, and a schoolteacher mother. In school, Susann was an intelligent but lazy student. She scored the highest on her class's IQ test, a 140, prompting her mother to predict that she would someday become a good writer. Susann had other ideas and instead had aspirations of being an actress. The young Jackie's rocky relationship with her hard-to-please mother, as well as her starry-eyed view of her roguish father, would later be woven into Susann's novels.

By the time Susann entered high school, she was dabbling in drugs and had earned the reputation of being a party girl. Although Susann's parents hoped she would enter college, Susann left for New York City after graduating from West Philadelphia High School in 1936 to pursue an acting career.